Uncaught TypeError: Cannot set property 'listData' of null (AdvancedDataGridItemRendererInitializer.js:62)

[pashminakazi]

Project Details are :
https://paste.apache.org/cpo8y
Test case is available on VDI.
Go to Sales from Select in Menu
Go to Carriage/Freight -> Contractor from Setups in Menu
File : com/dbz/modules/INV/dbzCarriageContractorSetup.mxml

Click on New button then second tab Agreement and then Plus(+) button....add agreement No and remarks and click OK,this exception will be occured

[aharui]

What is the "ir" property set to at the exception? Is it null or something else?

[pashminakazi]

"ir" property is dbzCarriageContractorSetup.dbzCarriageContractorSetup_component0

[aharui]

What is the base class for that renderer?

[pashminakazi]

AdvancedDataGridItemRendererInitializer extends ListItemRendererInitializer
ListItemRendererInitializer.as Path : mx.controls.beads.ListItemRendererInitializer.as

[aharui]

That looks like the hierarchy for the initializer and not the renderer. What are the top tags in any fx:Components in com/dbz/modules/INV/dbzCarriageContractorSetup.mxml or any MXML components it uses that defined the renderer.